Antifriction side bearing



J. F. O'CONNOR ANTIFRIGTION SIDE BEARING Filed Feb. 18, 1922 a f /7 @L7 /7 Patented May l, 1923.

entre JOHNF. oooNNor., or oHIonGo, ILLINOIS, Assis-Non fro WILLIAM' II. MINER, or," l

CHAZY, NEW YORK.

.Application led February 1.8, 1922. Serial No. 537,427.

To @Utah-mz't 11mg/ concern."

Be it known thatI, JOHNF. O -oNNoR, a citizen of the UnitedStates, residing at Chicago, in the. county .ofCook and State of Illinois, vhave invented a certain x new rand useful Improvement in Antifriction Side Bearings, ot which the following is a full, clear, concise, ,and exact description,`

,20 ly adapted for use, as afbod-y `bolster side bearing.

In the drawingwforming .a part of this specification, Figure 1 is a vertical, sectional 'view taken, throughthe body and Vtruck bolsters of: a car parallel to ,the vcenter line of the car and showing my improvements,

in connection therewith, .FigureQ -isca .top .plan view of the side.bearingproper, de-

tached. AAnd Figure 3..is .a vertical, sec- .tional view corresponding Ato `the section, line of Figure 1. l A

In saidv drawing, 1() denotes; the upper portion of a. truck-bolster` and. 11 kthe under lside of an opposed body `bolster. HAs shown, ,my yimproved bea-ring is applied to the body Abolster 11. and comprises,P broadly, a hous-` ing, base casting or retaining member A; a pairof' antiet'riction bearing, rollers IB-B; aspacing roll'erorrod C; journals D-D for theI rollers. B-B and. journal bearing blocks E and Evfor` therollersBand B',

respectively. y They housing or retaining member A,ras shown, yis Vormedwith a. lattop wall 12, de-

: edges "of `the. siduwwallsA 13'. Said@l support ing -ltlan'ges-'la are extended Vhorizontally'` at `theirT-central.portions :and fare curved upwardly as indicated att 14a-*14a ateac'h end. V.The housing lA is left open; ath-the top at each-end as indicatedfat'l5-15 to lpermit insertion of the rolle'rsand Band parts associated "therewith 'beto-re the, bearing is .applied to the'bdS'ter. YAlfter the Parts are against accidental removal duringl shipment Cin its under side, the .top wall 12 of .they

vhousing is provided with two bearing plates assembled with the housing A, theyare held l by cross rods or rivets l-l'nextending v through t-he .open places 15. Y

17 and 17a, of casehardened steel lor other suitable wear-resisting metal, Said plates ,A17 and` 17a may bein the orinof keys, eX

tended horizontally through suitable alinedf openings inthe side wallsl ofthel housing v and riveted over at their ends so asi-to extentV and are. separatedk longitudinally,

that is, inthe direction in'w'hichthe rollers B yand B roll` when 4in operation,1 thus leavying a space between the bearing platesas indicated at 18 in the centrall portion of the housing, for the purpose hereinafterr described. Said space 18 isfextended in length only slightly jmore thanv ther length` of, the

rollers B andB, Has indicated/in Figure,

and the housingA is formed onfoppositev sides with longitudinally extending. tracks 19.-19 which are continuous across theends of the recess 1S, as shown in Figure 3.

Thel rollers B and Bv arepreferablyLo-f like construction and are made ofsuitable material adapted to resist crushing,a1 id the same are centrally apertured` to-accommodate the journals D--D. The latter are extended suiiciently lso that, at their extreme ends, they rest upon their .supporting guide flanges .1aand intermediate -saidguide flanges 14 and the respective ends vot'- the rollersB and B', said journals have applied thereto the journal bearingb'locks and .EQ The latter are i preferably square-.in

outline4 as showin inf Figure: 1 'andait ywill' be .noted that the top` edgesV @(1-20 sot .said bearing .blocks'arev normally slightly. spaced ypending side' 'walls' 134-13, 'and inturned supporting; 'anges 141-14 along the bottom A in Figure 1. Initially, the rollers B and B are in contact with their respective bearing plates 17 and 17, and with the ournal bearing blocks E and E free, as above described. As the truck bolster 10 moves toward the right, after it has been brought into engagement with the rollers B and B', it is evident that both rollers B and B will be rolled toward the right, thus providing an anti-friction bearing. The bodily rolling action continues until the two rollers B and B have passed off of their respective bearing plates 17 and 17a. In the case of the roller B', the latter Vmoves up into the space 18, thereb permitting the journal bearing blocks E to engage the tracks 19 and thereafter the roller B rotates about a relatively fixed axis, thus providing for unlimited travel. Simultaneously with the roller B passing off of its bearing plate 17a, the roller B passes off of its bearing plate 17 and the journal D thereof begins to climb the curved portions 14a of the supporting flanges, thus elevating the roller B and relieving it of further bearing pressure. IVhen the load is discontinued, it is evident that the roller B, together with its journal bearing blocks E, will automatically return down the curved portions lta of the supporting flanges and push the spacer roller C, the latter in turn pushing the roller B back to its normal position.

In actual practice, the bearing plates 17 and 17a will be made of such a width that the rollers B and B will remain in contact therewith for all ordinary swiveling actions of the truck. Where a car encounters an excessively sharp curve as at terminals or repair shops, the extra travel will be taken care of by the rollers rotating on their respective journals, as above described.

I have herein shown and described what I now consider the preferred manner of carrying out the invention, but the same is merely illustrative, and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim:

1. In an anti-friction bearing, the com-` direction; and journal bearings for each` roller movable therewith and normally inactive but adapted to be operative when the corresponding roller passes off of its bearing surface to a point between the bearing surfaces.

2. In an anti-friction bearing, the combination with a retaining member adapted to be secured to the under side of a body bolster and provided with upper longitudinally separated bearing surfaces; of a pair of anti-friction rollers, each normally adapted to roll on one of said bearing surfaces; means for elevating one of said rollers dependent upon the direction in which the bearing is actuated; and translatable journal bearings for each of said rollers movable in unison therewith and adapted to support the rollers when the latter pass oiil of their respective bearing surfaces to a position between the bearing surfaces.

3. In an anti-friction bearing, the combination with a retaining member having longitudinally separated bearing surfaces on the interior thereof and provided also with side tracks at the ends of said bearing surfaces; of a pair of anti-friction rollers each normally adapted to roll on one of said bearing surfaces, each roller being provided with journals at its ends; journal bearing blocks mounted on said journal bearings, in alinement with said tracks and normally slightly spaced therefrom; means for elevating one of said rollers when the bearing is actuated in one direction, the other of said rollers moving to a position between said bearing surfaces and permitting said journal bearing blocks to engage the tracks to thereby adapt said roller for rotation about a relatively fixed axis thereafter.

4. In an anti-friction bearing, the combination with a retaining member adapted to be secured to the under side of a body bol-v ster and having interior downwardly facing longitudinally spaced bearing surfaces; of a pair of anti-friction rollers each normally adapted to roll on one of said bearing sur faces, one of said rollers moving to a point between the bearing surfaces and the other off of its bearing surface, when the bearing is actuated in one direction and vice versa; and journal bearing blocks at the ends of the rollers movable in unison therewith, the journal bearing blocks of the roller moving to a point between said bearing surfaces being adapted to rotatably support said roller.

5. In an anti-friction bearing, the combination with a retaining member provided on the interior with bearing surfaces having a space therebetween; of a pair of anti-friction rollers each having extended journals at its ends; means for supporting said rollers from said retaining member by the ends of said journals; a spacer interposed be tween said rollers; and journal hearing blocks on said journals movable therewith and normally inoperative, said journal bearing blocks being arranged to support the rollers when the latter are positioned opposite said space between the bearing surfaces.

6. In an anti-friction bearing, the combination with a housing having a top wall and depending side walls adapted to be secured to a body bolster, said top Wall having spaced bearing surfaces on ythe under side thereof, said side Walls having supportingflanges along their edges and curved up- Wardly at their ends; of a pair of anti-friotion rollers Within said housing each normally adapted to roll lupon a bearing surface; journals extended from the ends of said rollers supported on said flanges and adapted to elevate a roller when they engage With the corresponding Curved portions of said flanges; and journal bearing blocks mounted on said journals at the opposite ends of the rollers, the journal bearing blocks of one roller When the latter is moved opposite said space, supporting said roller to adapt it to rotate about a 'relatively fixed axis.

7. In an anti-friction bearing, the combination with a housing having a top Wall and depending side Walls adapted to be secured to a body bolster, said top Wall having spaced bearing surfaces on the under v side thereof, said side Walls having supporting flanges along their edges and curved adapted to elevate a roller when they engage n with the correspondingcurved portions 'of said flanges; journal bearing blocks mount#y ed on said journals at thel opposite `ends of the rollers, thejournal bearing blocks of one roller when the. latter is moved opposite said space, supporting said roller to adapt it to AEG,

25 l fwardly at their ends; of a pair ofanti-f'r'crotate about a relatively fixed axis; and a i spacing roller interposed between said antifriction rollersv and supported at its ends byfsaid flanges.y

In Witness that Iclaini theforegoing I i have hereunto subseribedmynaine thislth l day of Feb. 1922,` i

Witnesses: 4

CARRIE GAILING, ANN BAKER. e

JOHNv r. oooNNoR. i 

